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test/runtime/Metaspace/FragmentMetaspace.java
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*** 1,7 ****
/*
! * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
--- 1,7 ----
/*
! * Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*** 23,33 ****
/**
* @test
* @library /runtime/testlibrary
* @build GeneratedClassLoader
! * @run main/othervm/timeout=200 FragmentMetaspace
*/
import java.io.IOException;
/**
--- 23,33 ----
/**
* @test
* @library /runtime/testlibrary
* @build GeneratedClassLoader
! * @run main/othervm/timeout=200 -Xmx300m FragmentMetaspace
*/
import java.io.IOException;
/**
*** 36,64 ****
* iteration. By increasing the size of the class meta data needed for every iteration
* we stress the subsystem for allocating native memory for meta data.
*/
public class FragmentMetaspace {
public static void main(String... args) {
! runGrowing(Long.valueOf(System.getProperty("time", "80000")));
// try to clean up and unload classes to decrease
// class verification time in debug vm
System.gc();
}
! private static void runGrowing(long time) {
long startTime = System.currentTimeMillis();
! for (int i = 0; System.currentTimeMillis() < startTime + time; ++i) {
try {
GeneratedClassLoader gcl = new GeneratedClassLoader();
! Class<?> c = gcl.getGeneratedClasses(i, 100)[0];
c.newInstance();
c = null;
gcl = null;
! } catch (IOException|InstantiationException|IllegalAccessException ex) {
throw new RuntimeException(ex);
}
}
}
}
--- 36,73 ----
* iteration. By increasing the size of the class meta data needed for every iteration
* we stress the subsystem for allocating native memory for meta data.
*/
public class FragmentMetaspace {
+ public static Class<?> c;
+
public static void main(String... args) {
! runGrowing(Long.valueOf(System.getProperty("time", "80000")),
! Integer.valueOf(System.getProperty("iterations", "200")));
// try to clean up and unload classes to decrease
// class verification time in debug vm
System.gc();
}
! private static void runGrowing(long time, int iterations) {
long startTime = System.currentTimeMillis();
! for (int i = 0; System.currentTimeMillis() < startTime + time && i < iterations; ++i) {
try {
GeneratedClassLoader gcl = new GeneratedClassLoader();
! // getGeneratedClasses throws a RuntimeException in cases where
! // the javac exit code is not 0. If the original reason for the exception is
! // a "java.lang.OutOfMemoryError: Java heap space",
! // increase the heap size in the @run tag and rerun the test.
! // The heap can be exhausted by this test, but heap exhaustion
! // is not a failure mode of this test and should be ignored.
! c = gcl.getGeneratedClasses(i, 100)[0];
c.newInstance();
c = null;
gcl = null;
! } catch (IOException | InstantiationException | IllegalAccessException ex) {
throw new RuntimeException(ex);
}
}
}
}
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